A274550 - cp's OEIS frontend

A274550 The curvature of smallest circle among 4 mutually tangent(externally) circles with integer curvature and primitive (share no common factor).

n	a(n)
1	12
2	15
3	23
4	24
5	28
6	33
7	34
8	35
9	38
10	39
11	40
12	42
13	45
14	47
15	50
16	52
17	53
18	56
19	57
20	58
21	59
22	60
23	61
24	62
25	63
26	63
27	64
28	66
29	69
30	71
31	72
32	72
33	73
34	76
35	77
36	77
37	79
38	80
39	81
40	82
41	82
42	83
43	84
44	84
45	85
46	86
47	87
48	87
49	88
50	90
51	91
52	91
53	94
54	94
55	95
56	95
57	96
58	96
59	97
60	98
61	98
62	99
63	99

[12, 15, 23, 24, 28, 33, 34, 35, 38, 39, 40, 42, 45, 47, 50, 52, 53, 56, 57, 58, 59, 60, 61, 62, 63, 63, 64, 66, 69, 71, 72, 72, 73, 76, 77, 77, 79, 80, 81, 82, 82, 83, 84, 84, 85, 86, 87, 87, 88, 90, 91, 91, 94, 94, 95, 95, 96, 96, 97, 98, 98, 99, 99]

cp's OEIS Frontend

A274550 The curvature of smallest circle among 4 mutually tangent(externally) circles with integer curvature and primitive (share no common factor).

Table of values

List of values

n	a(n)
1	12
2	15
3	23
4	24
5	28
6	33
7	34
8	35
9	38
10	39
11	40
12	42
13	45
14	47
15	50
16	52
17	53
18	56
19	57
20	58
21	59
22	60
23	61
24	62
25	63
26	63
27	64
28	66
29	69
30	71
31	72
32	72
33	73
34	76
35	77
36	77
37	79
38	80
39	81
40	82
41	82
42	83
43	84
44	84
45	85
46	86
47	87
48	87
49	88
50	90
51	91
52	91
53	94
54	94
55	95
56	95
57	96
58	96
59	97
60	98
61	98
62	99
63	99

n	a(n)
1	12
2	15
3	23
4	24
5	28
6	33
7	34
8	35
9	38
10	39
11	40
12	42
13	45
14	47
15	50
16	52
17	53
18	56
19	57
20	58
21	59
22	60
23	61
24	62
25	63
26	63
27	64
28	66
29	69
30	71
31	72
32	72
33	73
34	76
35	77
36	77
37	79
38	80
39	81
40	82
41	82
42	83
43	84
44	84
45	85
46	86
47	87
48	87
49	88
50	90
51	91
52	91
53	94
54	94
55	95
56	95
57	96
58	96
59	97
60	98
61	98
62	99
63	99

n	a(n)
1	12
2	15
3	23
4	24
5	28
6	33
7	34
8	35
9	38
10	39
11	40
12	42
13	45
14	47
15	50
16	52
17	53
18	56
19	57
20	58
21	59
22	60
23	61
24	62
25	63
26	63
27	64
28	66
29	69
30	71
31	72
32	72
33	73
34	76
35	77
36	77
37	79
38	80
39	81
40	82
41	82
42	83
43	84
44	84
45	85
46	86
47	87
48	87
49	88
50	90
51	91
52	91
53	94
54	94
55	95
56	95
57	96
58	96
59	97
60	98
61	98
62	99
63	99